Here you can find the source of readLinesToString(Path file)
public static String readLinesToString(Path file) throws IOException
//package com.java2s; /*/* www.j a v a2s . co m*/ * $Id: $ * * Copyright 2012 Stoyan Rachev (stoyanr@gmail.com) * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import java.io.BufferedReader; import java.io.FileReader; import java.io.IOException; import java.nio.file.Path; public class Main { private static final int BUF_SIZE = 256 * 1024; public static String readLinesToString(Path file) throws IOException { final StringBuilder sb = new StringBuilder(); try (BufferedReader reader = new BufferedReader(new FileReader(file.toFile()), BUF_SIZE)) { reader.lines().forEach(line -> { sb.append(line); sb.append('\n'); }); } return sb.toString(); } }